Little Threepenny Music: I. Overture

Recording by Kurt Weill.

Recording identifiers

ISRC
GBDGQ2538101
CopyrightID (CopyrightChains transaction hash)
0x2be0315552d3ef9f002c4973a4da59ed31a6505617bd28e9f91f2bc65800339e
Copyright registration time
2026-07-29T20:30:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:09:47Z
Bitcoin block
960144
Canonical record hash
sha256:3376ab7e7007bc8b42b4e40bfe6601db6b304f3b203f38a2a10cb9b230bcdd32

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.